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nix-darwin/modules/programs/gnupg.nix
Ihar Hrachyshka 75d14c62cb gpg: Suppress stderr from gpg-connect-agent on shell init
In some scenarios, the command may fail, e.g. when the shell is executed
with a different $HOME from where gpg agent is configured to run from.

(E.g. this happens in kitty terminal test suite.)

This patch will suppress stderr errors on tty in this situation.

Note that zsh does not allow to suppress execution of /etc/zshenv on
startup, so it's impossible to skip it in the test suite environment.

An alternative would be to set IN_NIX_SHELL in the test suite, but this
was rejected in upstream:

https://github.com/kovidgoyal/kitty/pull/7800

There's also a kitty package specific fix posted here but this may be
unnecessary once nix-darwin is patched here:

https://github.com/NixOS/nixpkgs/pull/338070

Signed-off-by: Ihar Hrachyshka <ihar.hrachyshka@gmail.com>
2024-08-29 16:37:56 -04:00

51 lines
1.2 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.programs.gnupg;
in
{
options.programs.gnupg = {
agent.enable = mkOption {
type = types.bool;
default = false;
description = ''
Enables GnuPG agent for every user session.
'';
};
agent.enableSSHSupport = mkOption {
type = types.bool;
default = false;
description = ''
Enable SSH agent support in GnuPG agent. Also sets SSH_AUTH_SOCK
environment variable correctly.
'';
};
};
config = mkIf cfg.agent.enable {
launchd.user.agents.gnupg-agent.serviceConfig = {
ProgramArguments = [
"${pkgs.gnupg}/bin/gpg-connect-agent" "/bye"
];
RunAtLoad = cfg.agent.enableSSHSupport;
KeepAlive.SuccessfulExit = false;
};
environment.extraInit = ''
# Bind gpg-agent to this TTY if gpg commands are used.
export GPG_TTY=$(tty)
'' + (optionalString cfg.agent.enableSSHSupport ''
# SSH agent protocol doesn't support changing TTYs, so bind the agent
# to every new TTY.
${pkgs.gnupg}/bin/gpg-connect-agent --quiet updatestartuptty /bye > /dev/null 2>&1
export SSH_AUTH_SOCK=$(${pkgs.gnupg}/bin/gpgconf --list-dirs agent-ssh-socket)
'');
};
}